| Revision no. | Date | Comments |
| 1.0 | 12/02/98 | submitted for task approval |
| 1.1 | 20/04/98 | new LaTeX template, approved version |
| 1.2 | 25/08/98 | large revision of task, including incorporation of entire |
| calculation into main loop (i.e. no intermediate corrected | ||
| attitude file is formed) | ||
| 1.3 | 16/09/98 | slight changes in parameters |
| 1.4 | 23/10/98 | in line with v1.7 (SAS v2 delivery) |
| 1.5 | 16/11/98 | in line with v2.0 (new parameter: refpointlabel) |
| 1.6 | 04/02/99 | in line with v2.3 (astronomical position angle |
| used, GUI-compatible | ||
| 1.7 | 10/02/99 | in line with v4.0 (new parameter names) |
| 1.8 | 28/05/99 | in line with v4.1 (V3 delivery) |
| 1.9 | 18/08/99 | in line with v4.5 |
| 1.10 | 31/08/99 | in line with v4.9 |
| 1.11 | 16/09/99 | new documentation macros used |
| 4.15-4.18 | 03/12/99-29/02/00 | New numbering scheme |
| 4.19 | 29-03-00 | Parameter description updated |
| 4.20 | 03-05-00 | No error if atthkgen output does not exist. Keywords used stated. |
| 4.21 | 04-05-00 | New parameter withatthkset. |
| 4.22-4.25.5 | 26/05/00-20/02/01 | In line with task version number. |
| 4.27 | 14/03/02 | sensitive to OPTICS_X/OPTICS_Y |
| 4.28 | 15/05/02 | adapted to new parameter interface |